IMO, ASRock.
Considering that they’re probably the only mobo manufacturer that officially supports using consumer AM4 CPUs on a server (see ASRock Rack), and always supported ECC ram on all AM4 motherboards - and that I haven’t had anything negative happen with any of their products so far (at work) - I personally would choose ASRock next.
Haven’t had the chance to try them for AM5 yet, sadly.
For GBA, give a look at:
Super Monkey Ball Jr. (A classic)
Chu Chu Rocket! (Chill puzzle)